#B52571
Closest named color: Medium Violet Red (#C71585). oklch(52.3% 0.189 354.1), rgb(181, 37, 113).
Aa
White text reads best on this color (6.05:1).
About this color
#B52571 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.189 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.047 away. White text reads best on it, at 6.05:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #B52571 |
| RGB | rgb(181, 37, 113) |
| HSL | hsl(328, 66%, 43%) |
| OKLCH | oklch(52.3% 0.189 354.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #B52571 | 6.05:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #B52571 | 3.46:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #B52571 text on white | 6.05:1 | AA | Lc 78.8 | Fine for body text |
| #B52571 text on black | 3.46:1 | AA large text | Lc -23.0 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#F9E3EB
oklch(93.6% 0.026 353.5)
-
Step 200
200
#F6CCDB
oklch(88.5% 0.051 354.7)
-
Step 300
300
#F0A8C5
oklch(80.9% 0.092 353.5)
-
Step 400
400
#E576A7
oklch(70.6% 0.147 353.7)
-
Step 500
500
#DA4D91
oklch(63.1% 0.187 354)
-
Step 600
600
#C5277B
oklch(55.5% 0.203 354.1)
-
Step 700
700 (this color)
#B52571
oklch(52.3% 0.189 354.1)
-
Step 800
800
#8A1855
oklch(42.7% 0.157 353.9)
-
Step 900
900
#6F1D46
oklch(37.7% 0.122 353.9)
-
Step 950
950
#421329
oklch(27.1% 0.077 354.5)
#B52571 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #435273 | 0.214 |
| Deuteranopia (no green cones) | #6B6C6E | 0.190 |
| Tritanopia (no blue cones) | #C41048 | 0.067 |
| Achromatopsia (no color) | #626262 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B52571
#B52571
oklch(52.3% 0.189 354.1)
- #007C65
#007C65
oklch(52.3% 0.1 173.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #B52571, closest first.
No curated palette has a color within ΔE 0.04 of #B52571.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.047
- Violet Red #A50055 ΔE 0.059
- Raspberry #B00149 ΔE 0.061
- Deep Magenta #A0025C ΔE 0.062
- Red Violet #9E0168 ΔE 0.063
- Light Burgundy #A8415B ΔE 0.065
- Dark Fuchsia #9D0759 ΔE 0.068
- Dark Pink #CB416B ΔE 0.072
Use #B52571 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.